Hi, I'm trying to do a forest scene and I have a pretty good understanding of Bryce. But what I want to do is make debris in the air that basically is being scene through light rays. I call it forest flutter...But I don't know how to describe it any better. It's the debris you see in the woods at certain times in the day. like dust particles, pieces of leaves, etc etc...Does anyone have any suggestions...I'm fresh out of ideas...I guess you could imagine like flower petals falling from the trees Even something like that would work...Thanks for any help you may be able to give. Michael

Heavy use of fog and haze, and postwork for the larger dust motes and debris.... 'And as I stood in the stillness, the light like drifting motes carried in the warm air, fell upon the moist forest floor, a spill of golden coins at my feet. Quiet stood there beside me as the enfolding arms of evening wove her gauzy veil among the trees preparing the wood for sleep.....'

Post Production!

another thing is to create a large primitive covering the whole scene, and texture with a volume material, though this really slows down a render..;)

Volume materials are the best way to do it. Remember you can stop a render and save your Bryce file and restart your render frowm where you left off. With volume renders I usually let them go overnight, then stop and save them in the morning when I need the computer for modeling and mapping. I can then restart where I left off before I go to bed at night.

Attached Link: http://www.renderosity.com/viewed.ez?galleryid=557495&Start=1&Artist=haloedrain&ByArtist=Yes

Or you could go nuts with 2d squares like I did in image at the link. Of course, my computer just about had a heart attack keeping track of them all (at one point I think I had a bit over 16k squares in there), but if you don't use quite that many and you have a lot of ram you might be ok.